22513749044 has 6 divisors (see below), whose sum is σ = 39399060834. Its totient is φ = 11256874520.

The previous prime is 22513749007. The next prime is 22513749073. The reversal of 22513749044 is 44094731522.

It can be written as a sum of positive squares in only one way, i.e., 19574808100 + 2938940944 = 139910^2 + 54212^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22513748992 and 22513749010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2814218627 + ... + 2814218634.

It is an arithmetic number, because the mean of its divisors is an integer number (6566510139).

Almost surely, 2^22513749044 is an apocalyptic number.

It is an amenable number.

22513749044 is a deficient number, since it is larger than the sum of its proper divisors (16885311790).

22513749044 is a wasteful number, since it uses less digits than its factorization.

22513749044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5628437265 (or 5628437263 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 22513749044 in words is "twenty-two billion, five hundred thirteen million, seven hundred forty-nine thousand, forty-four".